Ineed to know what the answer is for question number 10

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Find the mass, in grams, of 5.00*10^23 molecules of f2